No picture standbylight just keeps blinking-

An interruption in the power supply is the main cause of the red light flashing problem. This interruption is often the result of swollen or blown capacitors. Capacitors are a very important part of TVs as they save and release electricity in the TV

1. Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.

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Hello
Vertical IC inside your Sony TV has damaged [shorted]. Four blinks of standby light denotes it. The number of blinks of standbylight in Sony denotes some fault, and can be determine according the the continueous blinks. In your case, the standby light will blink four times, then stop for a while and will continue to blink four times and so on. Vertical output IC should be replaced with same type and number. If you are aware in electronics and have tools, you yourself can do the work.
If you wants anymore assistance, feel free to get me by Fixya.
Thanks for using Fixya.

Remove the Lamp Door and then reinstall the lamp door. This resets the safety interlock switch.

wonder if the manual says anything on the flashing standbylight? but ill bet the flashing is a protector,which means the speaker amplifier is shorted or dodod. so disconnect the speaker wires first .

How old is this TV? Did you replaced its lamp?
Symptom shows TV needs new lamp as existing lamp is weak and unable to provide back light.
Thanks.

Hi,
The standby light LED BLINK is in specific numbers, please count that how many time LED BLINKS in specific time and in specific numbers like 1 time 2 time 3 times etc, every blink has its area of fault which processing IC detects, Therefore please count and let me know the number of blinking stand by light and then i can tell you the area of fault and its solution.
Hope you will understand my sayings, if need more clarification write in comments.
thanks for using fixya.

Count the blinks between the pause, Let me know or call a sony service center if your a novice at tv repair

Red light blinking means there's a problem in the TV....

What kind of tv is it?

Diagnostic code meaning;

Nine blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negitive).

Hope it may help you;

Regards,
VOTIT